/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package zoo.asynweb.pipe;

import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.security.Principal;
import java.util.Enumeration;
import java.util.Locale;
import java.util.Map;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletInputStream;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

/**
 * 用来模拟上传文件的servletRequest
 */
public class MockHttpServletRequest implements HttpServletRequest {
	public static final String CONTENT_TYPE = "Content-type";
	private final InputStream m_requestData;
	private final int length;
	private String m_strContentType;
	private Map m_headers = new java.util.HashMap();

	/**
	 * Creates a new instance with the given request data and content type.
	 */
	public MockHttpServletRequest(final byte[] requestData,
			final String strContentType) {
		this(new ByteArrayInputStream(requestData), requestData.length,
				strContentType);
	}

	/**
	 * Creates a new instance with the given request data and content type.
	 */
	public MockHttpServletRequest(final InputStream requestData,
			final int requestLength, final String strContentType) {
		m_requestData = requestData;
		length = requestLength;
		m_strContentType = strContentType;
		m_headers.put(CONTENT_TYPE, strContentType);
	}

	/**
	 * @see javax.servlet.http.HttpServletRequest#getAuthType()
	 */
	public String getAuthType() {
		return null;
	}

	/**
	 * @see javax.servlet.http.HttpServletRequest#getCookies()
	 */
	public Cookie[] getCookies() {
		return null;
	}

	/**
	 * @see javax.servlet.http.HttpServletRequest#getDateHeader(String)
	 */
	public long getDateHeader(String arg0) {
		return 0;
	}

	/**
	 * @see javax.servlet.http.HttpServletRequest#getHeader(String)
	 */
	public String getHeader(String headerName) {
		return (String) m_headers.get(headerName);
	}

	/**
	 * @see javax.servlet.http.HttpServletRequest#getHeaders(String)
	 */
	public Enumeration getHeaders(String arg0) {
		// todo - implement
		return null;
	}

	/**
	 * @see javax.servlet.http.HttpServletRequest#getHeaderNames()
	 */
	public Enumeration getHeaderNames() {
		// todo - implement
		return null;
	}

	/**
	 * @see javax.servlet.http.HttpServletRequest#getIntHeader(String)
	 */
	public int getIntHeader(String arg0) {
		return 0;
	}

	/**
	 * @see javax.servlet.http.HttpServletRequest#getMethod()
	 */
	public String getMethod() {
		return "POST";
	}

	/**
	 * @see javax.servlet.http.HttpServletRequest#getPathInfo()
	 */
	public String getPathInfo() {
		return null;
	}

	/**
	 * @see javax.servlet.http.HttpServletRequest#getPathTranslated()
	 */
	public String getPathTranslated() {
		return null;
	}

	/**
	 * @see javax.servlet.http.HttpServletRequest#getContextPath()
	 */
	public String getContextPath() {
		return null;
	}

	/**
	 * @see javax.servlet.http.HttpServletRequest#getQueryString()
	 */
	public String getQueryString() {
		return null;
	}

	/**
	 * @see javax.servlet.http.HttpServletRequest#getRemoteUser()
	 */
	public String getRemoteUser() {
		return null;
	}

	/**
	 * @see javax.servlet.http.HttpServletRequest#isUserInRole(String)
	 */
	public boolean isUserInRole(String arg0) {
		return false;
	}

	/**
	 * @see javax.servlet.http.HttpServletRequest#getUserPrincipal()
	 */
	public Principal getUserPrincipal() {
		return null;
	}

	/**
	 * @see javax.servlet.http.HttpServletRequest#getRequestedSessionId()
	 */
	public String getRequestedSessionId() {
		return null;
	}

	/**
	 * @see javax.servlet.http.HttpServletRequest#getRequestURI()
	 */
	public String getRequestURI() {
		return null;
	}

	/**
	 * @see javax.servlet.http.HttpServletRequest#getRequestURL()
	 */
	public StringBuffer getRequestURL() {
		return null;
	}

	/**
	 * @see javax.servlet.http.HttpServletRequest#getServletPath()
	 */
	public String getServletPath() {
		return null;
	}

	/**
	 * @see javax.servlet.http.HttpServletRequest#getSession(boolean)
	 */
	public HttpSession getSession(boolean arg0) {
		return null;
	}

	/**
	 * @see javax.servlet.http.HttpServletRequest#getSession()
	 */
	public HttpSession getSession() {
		return null;
	}

	/**
	 * @see javax.servlet.http.HttpServletRequest#isRequestedSessionIdValid()
	 */
	public boolean isRequestedSessionIdValid() {
		return false;
	}

	/**
	 * @see javax.servlet.http.HttpServletRequest#isRequestedSessionIdFromCookie()
	 */
	public boolean isRequestedSessionIdFromCookie() {
		return false;
	}

	/**
	 * @see javax.servlet.http.HttpServletRequest#isRequestedSessionIdFromURL()
	 */
	public boolean isRequestedSessionIdFromURL() {
		return false;
	}

	/**
	 * @see javax.servlet.http.HttpServletRequest#isRequestedSessionIdFromUrl()
	 * @deprecated
	 */
	public boolean isRequestedSessionIdFromUrl() {
		return false;
	}

	/**
	 * @see javax.servlet.ServletRequest#getAttribute(String)
	 */
	public Object getAttribute(String arg0) {
		return null;
	}

	/**
	 * @see javax.servlet.ServletRequest#getAttributeNames()
	 */
	public Enumeration getAttributeNames() {
		return null;
	}

	/**
	 * @see javax.servlet.ServletRequest#getCharacterEncoding()
	 */
	public String getCharacterEncoding() {
		return null;
	}

	/**
	 * @see javax.servlet.ServletRequest#setCharacterEncoding(String)
	 */
	public void setCharacterEncoding(String arg0)
			throws UnsupportedEncodingException {
	}

	/**
	 * @see javax.servlet.ServletRequest#getContentLength()
	 */
	public int getContentLength() {
		int iLength = 0;

		if (null == m_requestData) {
			iLength = -1;
		} else {
			iLength = length;
		}
		return iLength;
	}

	/**
	 * @see javax.servlet.ServletRequest#getContentType()
	 */
	public String getContentType() {
		return m_strContentType;
	}

	/**
	 * @see javax.servlet.ServletRequest#getInputStream()
	 */
	public ServletInputStream getInputStream() throws IOException {
		ServletInputStream sis = new MyServletInputStream(m_requestData);
		return sis;
	}

	/**
	 * @see javax.servlet.ServletRequest#getParameter(String)
	 */
	public String getParameter(String arg0) {
		return null;
	}

	/**
	 * @see javax.servlet.ServletRequest#getParameterNames()
	 */
	public Enumeration getParameterNames() {
		return null;
	}

	/**
	 * @see javax.servlet.ServletRequest#getParameterValues(String)
	 */
	public String[] getParameterValues(String arg0) {
		return null;
	}

	/**
	 * @see javax.servlet.ServletRequest#getParameterMap()
	 */
	public Map getParameterMap() {
		return null;
	}

	/**
	 * @see javax.servlet.ServletRequest#getProtocol()
	 */
	public String getProtocol() {
		return null;
	}

	/**
	 * @see javax.servlet.ServletRequest#getScheme()
	 */
	public String getScheme() {
		return null;
	}

	/**
	 * @see javax.servlet.ServletRequest#getServerName()
	 */
	public String getServerName() {
		return null;
	}

	/**
	 * @see javax.servlet.ServletRequest#getLocalName()
	 */
	public String getLocalName() {
		return null;
	}

	/**
	 * @see javax.servlet.ServletRequest#getServerPort()
	 */
	public int getServerPort() {
		return 0;
	}

	/**
	 * @see javax.servlet.ServletRequest#getLocalPort()
	 */
	public int getLocalPort() {
		return 0;
	}

	/**
	 * @see javax.servlet.ServletRequest#getRemotePort()
	 */
	public int getRemotePort() {
		return 0;
	}

	/**
	 * @see javax.servlet.ServletRequest#getReader()
	 */
	public BufferedReader getReader() throws IOException {
		return null;
	}

	/**
	 * @see javax.servlet.ServletRequest#getRemoteAddr()
	 */
	public String getRemoteAddr() {
		return null;
	}

	/**
	 * @see javax.servlet.ServletRequest#getLocalAddr()
	 */
	public String getLocalAddr() {
		return null;
	}

	/**
	 * @see javax.servlet.ServletRequest#getRemoteHost()
	 */
	public String getRemoteHost() {
		return null;
	}

	/**
	 * @see javax.servlet.ServletRequest#setAttribute(String, Object)
	 */
	public void setAttribute(String arg0, Object arg1) {
	}

	/**
	 * @see javax.servlet.ServletRequest#removeAttribute(String)
	 */
	public void removeAttribute(String arg0) {
	}

	/**
	 * @see javax.servlet.ServletRequest#getLocale()
	 */
	public Locale getLocale() {
		return null;
	}

	/**
	 * @see javax.servlet.ServletRequest#getLocales()
	 */
	public Enumeration getLocales() {
		return null;
	}

	/**
	 * @see javax.servlet.ServletRequest#isSecure()
	 */
	public boolean isSecure() {
		return false;
	}

	/**
	 * @see javax.servlet.ServletRequest#getRequestDispatcher(String)
	 */
	public RequestDispatcher getRequestDispatcher(String arg0) {
		return null;
	}

	/**
	 * @see javax.servlet.ServletRequest#getRealPath(String)
	 * @deprecated
	 */
	public String getRealPath(String arg0) {
		return null;
	}

	/**
	 *
	 *
	 *
	 *
	 */
	private static class MyServletInputStream extends
			javax.servlet.ServletInputStream {
		private final InputStream in;

		/**
		 * Creates a new instance, which returns the given streams data.
		 */
		public MyServletInputStream(InputStream pStream) {
			in = pStream;
		}

		public int read() throws IOException {
			return in.read();
		}

		public int read(byte b[], int off, int len) throws IOException {
			return in.read(b, off, len);
		}
	}
}
